Type-writer.



L. BACH & H. DREYER.

4TYPE WRITER. APPLICATION FIL-ED 0013.6, 1910.

Patented Dec. 26,1911.

2 SHEETS-SHEET 1.

' L. BACH & H. DREYER.

' TYPE WRITER. 'ARLIOATION FILED ooT.e, 1910.

Patented 1100.211911.

.2 SHEETS-SHEET 2.

1 ./fZfY UNITED sTATEs PATENT oiEioE..l

LEOPOLD BACH, or HAMBURG, AND HANS DEEYER, OF BERLIN, GERMANY; sAID d DHEYER AssIGNoR To SAID BACH.

TYPE-WRITER.

Specification of Letters-Tatent.

Patented Dec. 26, 1911.

Application led October 6, 1910. Serial No. 585,654.

To all whom 'it may concern:-

Be it known that we, LEOPOLD BACH and HANS DREYER, subjects of the German EmJ peror, residing at Hamburg and Berlin, Germany, respectively,L have invented new and useful Improvements in Type-Writers, of which the following is a specification.

Our invention relates to typewriters, and a primary object is to provide an improved typewriter for producing original text having justified lines, for newspaper work, books or music, the original text be= ing preferably used for fiat printing of any kind. v

Another object is to provide means whereby the operator is not confined to using definite widths of spaces for justifying. To this end, the justifying space-keys v can be depressed an amount selected at will. Further, our improved typewriter comprises the well-known type-cylinder, but owing to the special position of the types on it, i. e. laterally of the axial section through the cylinder, it. is particularly adapted to its special purpose, so that the lines all begin in one line as in printed matter.

A further object is to provide improved paper-carriage feed'mechanism.

One illustrative embodiment of our invention is represented by way ofexample in the accompanying drawings, wherein Figures 1 and 2 are rear and side elevational views, respectively, showing our improved typewriter, while Figs. 3 to 7 show details on an enlarged scale.

Referring to the drawings, the type-cylinder v 1 carries type not located, as usual, symmetrical to the axial section of the typecylinder, but to one side thereof so thatthe left-hand edges of the letters will lie a straight line as shown in 7, thereby assuring that the lines will all begin in a straight line.

The type are set in operative position by means of a knob or handle 2 secured to a bridge 3 which embraces the key board'15 and which is provided on its under side with a rack adapted to engage a toothed wheel 4v secured to the shaft or axle 4 ofthe type cylinder 1. The shaft 4: is rotatably and slidingly mounted in a frame 40 which is pivotally mounted upon the base, as shown at 41. By moving the knob to the right or left the shaft 4 and type .cylinder 1will be rot-ated to bring any desired line of type'into voperative position. Downwardly extending flanges 43 are positioned on either side of N the bridge 3, whereby by moving the knob 2 up or down with respect to the boa-rd 15 the shaft 4 and -cylinder 1 will be moved in a corresponding direction so that'any desired type may be brought into its operative position. As the positions of the letters or characters on the board 15 correspond with the positions of the letters or characters4 on the typel cylinder l it will be'understood from the above that by moving the knob into registry with any desired-character on the' board the corresponding character on the type cylinder will be placed in its operative position. After one hand has caused a type to make an impression by pressing the type cylinder into engagement 'with the paper one of the four space-keys 5 is depressed with the other hand (Figs. 1, 2 and 3), whereby the paper carriage 6 carrying the transfer paper to be printed -is fed the breadth of the letter and a corresponding space. This -displacement is brought about' by means of an angle lever 7 fulcrumed at 8 in the frame and provided with an arm 7 2 and an arm 7 adjust-ably connected therewith. The Aupper edge of the'horizontal varm of the angle lever 7 i's depressed or recessed, asshown' in Fig. 3. The upwardly extending. portion of the arm' 7 enbraces a pin-'f10'movable horizontally in the frame. This pin carries and actuates the-clamping'ring'll 'adapted to impart afeeding movement to ay feedbar 12, which is secured to the paper carriage 6: z

Themotion transmitted by any one of the space-keys to the horizontal arm of theangle ingly'i -`Fulcrlimed 'on thepivot 8 i'n the frame 'adjacent to the angle lever 7 is a ratchet lever 16 which can be held at various heights by the spring click 17 to limit the downward strokes ofthe space-keys 5' corl responding to the breadth of letters and spacekey from the right, for example, is

pressed downward there will be no feeding of the rod 12 before the space-key comes into engagement with the upper edge of arm 7. 'As the key is further depressed after engaging this arm it will cause the arm to move downward, which will consequently cause the angle lever 7 to rotate about its j fulcrum 8 thereby causing a feeding movement of the rod 12. This feeding movement will cont-inue until the space-key 5 comes into engagement with the upper edge of the lever 16. It will thus be seen that by adjusting the position of the lever 16 and the position of the arm 7 the rod 12 may be fed through any desired distance within certain limits.

The greatest effective stroke is given to the right-hand space-key lever 5, while each of the other levers will rock a smaller distance than the levers to the right, z'. e. the lever 5 located farthest to the left will move the least distance.

The transfer paper on which the text is printed is wound on a roller 18 journaled in the paper carriage and runs from the roller 1.9. against -which it is pressed by two press rolls 20 over the printing bed 21 to the tensioning roll 22. When the roll 19 rotates, this tensioning roll is driven by two endless india-rubber bands 23 so that the alreadv printed part of the paper, pressed bv the iroll 24 against the roll 23, is always stretched taut and lies smoothly on the printing bed 21.

For feeding the paper a distance correspending to the space between the two lines the roll 19 is used, on the right-hand end of which is fixed a disk 25 provided with a plurality of concentricallv arranged rows of holes into anv one of which a spring-pressed pin 26 is adapted to extend (Fig. 4). The spring 26 carrying the pin 26 at one end has its other end secured to the rod27 which is movably arranged in the bearing 29 which is adapted to rock about the screw28. In order to be able to adjust the spacing of the lines according to the various sorts of type the distance between the holes is different in the different concentric rows, but, of course, the holes in any one concentric row are spaced equally from one another. Assuming the pin 26 to be positioned to co-act with the outermost of the concentric rows of holes, the distance through which tlux toed roller is turned corresponds to the distance between the holes, and the pin 26 will snap into the next hole thereby arresting the feeding movement. As the distances between holes are equal it follows that the paper will be fed equally, thus insuring proper spacing of the lines. changing the spacing of the lines of the text from one kind of type to another, it being only necessary to turn the set-screw 3C and rock the bearing 29 so that the pin 26 can snap into the nearest hole of the concentric row of holes which corresponds to the desired sort of type. The stroke of the rod 27 when the disk 26 rotates is simultaneously adjusted.

Our typewriter admits of any desired sort of type being employed; it is ready for use for a new sort of type at once after exchanging the type-cylinderl and adjusting the lever 16 and the desired spacing between the lines.

Justification of the lines, usually effected in type-sett-ingmachines by wedges, is preferably brought about in my machine by means of the space-key levers 5 when writing the last word by making the spaces between the individual letters, a'nolalso the space between the last two words such that the lines are printed to the end. This is done all the more readily because the spaces between the letters and words can be varied as desired by depressing the space-key levers 5V any desired distance.

In order to produce the side lines usual in matter printed in columns, a revoluble disk 31 resting on the paper and inked by an inked felt-covered roller 32 may be placed beside the press rolls 20 on their axle. The type-cylinder 1 isinked by the ink roll 35 journaled on a lever 33 rocking around the pivot 34. Y

Ourtypewriter is also adapted for printing music; it can just as well be employed as a simple typewriter, because instead of the paper from the paper roll 18 any desired letter sheet can be inserted and the margin can be adjusted by means of the adjustable slide 37 movable on the graduated rear part of the frame 36 of the carriage.

Yale claim In a typewriting machine of the character described, in combination, a key board provided with a plurality of characters of different breadths, a paper carriage, a plurality of spacing keys, there being as many keys as there are different breadths of characters, and means operatively associated with said keys and with said carriage yfor feeding the latter upon actuation of the former, said means feeding the carriage different distances depending upon which key is depressed, each of said keys correspond- The set-screw 30 admits of ing to the characters of one breadth only' names to this specification in the presence of whereby the depression of any one of said two subscribing witnesses.

keys will cause a feeding movement of said LEPOLD BACH.

carriage .n accordance with the Width of the HAN S DREYER. 5 characters corresponding t0 the key which is Witnesses:

depressed. l WOLDEMAR HAUPT,

y In ,testimony whereof We have signed our HENRY HASPER. 

